/* Initialize a buffer. */
void KexecInitBuffer(PKEXEC_BUFFER KexecBuffer)
{
ExInitializeFastMutex(&KexecBuffer->Mutex);
LOCK_BUFFER(KexecBuffer);
KexecClearBuffer(KexecBuffer);
UNLOCK_BUFFER(KexecBuffer);
}
/* Retrieve data from a buffer. */
NTSTATUS KexecGetBuffer(PKEXEC_BUFFER KexecBuffer, ULONG size, PVOID buf, DWORD* osize)
{
LOCK_BUFFER(KexecBuffer);
if (size < KexecBuffer->Size) {
*osize = 0;
UNLOCK_BUFFER(KexecBuffer);
return STATUS_INSUFFICIENT_RESOURCES;
}
RtlCopyMemory(buf, KexecBuffer->Data, KexecBuffer->Size);
*osize = KexecBuffer->Size;
UNLOCK_BUFFER(KexecBuffer);
return STATUS_SUCCESS;
}
static void rf_desktop_resize(rdpContext* context)
{
RemminaProtocolWidget* gp;
rfContext* rfi;
rfi = (rfContext*) context;
gp = rfi->protocol_widget;
LOCK_BUFFER(TRUE)
remmina_plugin_service->protocol_plugin_set_width(gp, rfi->settings->DesktopWidth);
remmina_plugin_service->protocol_plugin_set_height(gp, rfi->settings->DesktopHeight);
UNLOCK_BUFFER(TRUE)
THREADS_ENTER
remmina_rdp_event_update_scale(gp);
THREADS_LEAVE
remmina_plugin_service->protocol_plugin_emit_signal(gp, "desktop-resize");
}
/* Load data into a buffer. */
NTSTATUS KexecLoadBuffer(PKEXEC_BUFFER KexecBuffer, ULONG size, PVOID data)
{
ULONG alloc_size;
/* Round the size up to the nearest multiple of 4096 to ensure that
the buffer ends up on a page boundary. */
alloc_size = (size + 4095) & 0xffff000;
LOCK_BUFFER(KexecBuffer);
KexecFreeBuffer(KexecBuffer);
KexecBuffer->Data = ExAllocatePoolWithTag(NonPagedPool,
alloc_size, TAG('K', 'x', 'e', 'c'));
if (!KexecBuffer->Data) {
UNLOCK_BUFFER(KexecBuffer);
return STATUS_INSUFFICIENT_RESOURCES;
}
KexecBuffer->Size = size;
RtlCopyMemory(KexecBuffer->Data, data, size);
KexecUpdateBufferHash(KexecBuffer);
UNLOCK_BUFFER(KexecBuffer);
return STATUS_SUCCESS;
}
gboolean remmina_rdp_event_queue_ui(RemminaProtocolWidget* gp)
{
rfContext* rfi;
RemminaPluginRdpUiObject* ui;
rfi = GET_DATA(gp);
ui = (RemminaPluginRdpUiObject*) g_async_queue_try_pop(rfi->ui_queue);
if (ui)
{
switch (ui->type)
{
case REMMINA_RDP_UI_UPDATE_REGION:
remmina_rdp_event_update_region(gp, ui);
break;
case REMMINA_RDP_UI_CONNECTED:
remmina_rdp_event_connected(gp, ui);
break;
case REMMINA_RDP_UI_UPDATE_CURSOR:
remmina_rdp_event_update_cursor(gp, ui);
break;
default:
break;
}
rf_object_free(gp, ui);
return TRUE;
}
else
{
LOCK_BUFFER(FALSE)
rfi->ui_handler = 0;
UNLOCK_BUFFER(FALSE)
return FALSE;
}
}
/* Destroy a buffer. */
void KexecDestroyBuffer(PKEXEC_BUFFER KexecBuffer)
{
LOCK_BUFFER(KexecBuffer);
KexecFreeBuffer(KexecBuffer);
UNLOCK_BUFFER(KexecBuffer);
}
